merging images from a compact-pdf file

[Glenn Hirshon <Gl...@ozcap.com>]

I've been using pdfbox to do processing on documents scanned with our 
office copy machines (Cannon and Ricoh machines).  Normally, the resulting 
pdf files contain one TIF file per page and the page.converttoimage() 
function works fine to extract the image.  One of the machines has a 
setting to produce 'compact pdf' files which produces a smaller file. When 
the compact feature is turned on, instead of a single TIF image being 
stored in the page, multiple images are stored which need to be 
reassembled into a single image through some type of merging process.

I am able to extract the separate images but I'm missing the roadmap on 
how to size the images and recombine them.  Is there some sort of property 
which provides relative x,y coordinates so I can recombine using a 
graphics drawImage method?


Glenn Hirshon



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RES: merging images from a compact-pdf file

[José Rodolfo Carrijo de Freitas <jo...@softplan.com.br>]

Hello Glenn, 
There is an example that show how to do that.

Is a class called PrintImageLocations, the problem is to process the entire
stream to find this information.
Maybe you can adapt it to process the stream once and store those locations
in a data structure.

http://pdfbox.apache.org/apidocs/org/apache/pdfbox/examples/util/PrintImageL
ocations.html


-----Mensagem original-----
De: Glenn Hirshon [mailto:Glenn.Hirshon@ozcap.com] 
Enviada em: terça-feira, 23 de novembro de 2010 16:16
Para: users
Assunto: merging images from a compact-pdf file

I've been using pdfbox to do processing on documents scanned with our 
office copy machines (Cannon and Ricoh machines).  Normally, the resulting 
pdf files contain one TIF file per page and the page.converttoimage() 
function works fine to extract the image.  One of the machines has a 
setting to produce 'compact pdf' files which produces a smaller file. When 
the compact feature is turned on, instead of a single TIF image being 
stored in the page, multiple images are stored which need to be 
reassembled into a single image through some type of merging process.

I am able to extract the separate images but I'm missing the roadmap on 
how to size the images and recombine them.  Is there some sort of property 
which provides relative x,y coordinates so I can recombine using a 
graphics drawImage method?


Glenn Hirshon



The information contained in this message and any attachment(s) may be 
privileged, confidential, proprietary or otherwise protected from 
disclosure and is intended solely for the use of the individual or entity 
to whom it is addressed. If you are not the intended recipient, you are 
hereby notified that any dissemination, distribution, copying or use of 
this message and any attachment is strictly prohibited and may be 
unlawful. If you have received this message in error, please notify us 
immediately by replying to this email and permanently delete the message 
from your computer. 

Nothing contained in this message and/or any attachment(s) constitutes a 
solicitation or an offer to buy or sell any securities.